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  • Hypertension  (3)
  • Inorganic Chemistry  (3)
  • 1985-1989  (5)
  • 1965-1969  (1)
  • 1940-1944
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 64 (1986), S. 1183-1185 
    ISSN: 1432-1440
    Keywords: Salt restriction ; Weight reduction ; Hypertension ; Intracellular electrolytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 16 essential hypertensives on a program of energy restriction (800 kcal/day) with and without simultaneous salt restriction, the effects on blood pressure and intracellular Na+ and Ca2+ in red blood cells were studied. A decrease in blood pressure and intracellular free Na+ and Ca2+ was only observed in the cases of simultaneous energy and salt restriction. The beneficial effect of weight reduction in hypertension thus depends on a diminished salt intake and is probably mediated by changes in intracellular free Ca2+.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 155-160 
    ISSN: 1432-1440
    Keywords: Hypertension ; Ca2+
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Several disturbances of cellular Ca2+ metabolism have been described in essential hypertension and in the spontaneously hypertensive rat. Possibly the elevation of intracellular free Ca2+ concentration in arterial smooth muscle cells is one important step in the pathogenesis of primary hypertension. In most studies a decreased energy-dependent Ca2+ transport has been proposed as a mechanism. However, disturbances in cellular Ca2+ metabolism, which can be exclusively ascribed to essential hypertension, have not yet been found. The cause of altered cellular Ca2+ transport in primary hypertension may either be a genetically determined defect of membrane transport or a still-unidentified humoral factor.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 63 (1985), S. 762-764 
    ISSN: 1432-1440
    Keywords: Phlebotomy ; Hypertension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 15 essential hypertensives resistant against a standard triple combination of antihypertensive drugs phlebotomy was performed. Mean arterial pressure was lowered from 140.1±12.2 mm Hg to 123.8±14.9 mm Hg after 14 days. No serious side effects were observed. The duration of the hypoptensive effect of phlebotomy was about 4 weeks. Phlebotomy can be used in addition to drug treatment in resistant essential hypertension.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 1981-1987 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Tris(dimethylamino)-phosphan addiert Halogene (Cl2, Br2, J2) zu Tris(dimethylamino)-halogeno-phosphonium-halogeniden. Einige ihrer Eigenschaften werden beschrieben.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 961-970 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of [2]-Catenanes from [2]-RotaxanesStarting from the rotaxane 18a a mixture of catenane 21 and rotaxane 23 is obtained by attaching a polymethylene bridge between the methylene groups in α-position of the sulfonyl groups. The isocyclic catenane 28 containing a 28- and a 46-membered ring is obtained from the catenane 21 by splitting the bonds between the bridgehead atoms and the sulfonyl groups. The 1H-, 13C-NMR, and mass spectra of this compounds are discussed.
    Notes: Ausgehend von dem Rotaxan 18a wird durch Angliederung einer Polymethylenbrücke zwischen den beiden zu den Sulfonylgruppen α-ständigen Methylengruppen ein Gemisch von Catenan 21 und Rotaxan 23 synthetisiert. Aus 21 wird nach Spaltung der Bindungen zwischen den Brückenkopfatomen und den Sulfonylgruppen das isocyclische Catenan 28, bestehend aus einem 28-und einem 46-gliedrigen Ring, erhalten. Die 1H-, 13C-NMR-Spektren und Massenspektren dieser Verbindung werden diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 1374-1399 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Directed Synthesis of Translationally Isomeric [3]-Catenanes1)In a multi-step reaction sequence the tetrahydroxymetacyclophane 12c is synthesized. Acetalisation with 1,25-dichloro-13-pentacosanone followed by nitration and reduction afforded the diamine 13c. By cyclization of this compound in 2-pentanol with sodium carbonate and sodium iodide under high dilution conditions the monomeric products 16, 17, and 18 are obtained in yields of 21.4, 7.7, and 0.9%, respectively. On the basis of mass, 13C NMR and 1H NMR spectra the structure of these compounds is discussed. Starting from the precatenane 16 the [3]-catenanes 25a, b,c and 26a, b, c are obtained in a multi-step reaction sequence. The structure of these compounds is confirmed by mass, 13C NMR, and 1H NMR spectroscopic investigations.
    Notes: In einer vielstufigen Synthese wird das Tetrahydroxymetacyclophan 12c synthetisiert. Durch Acetalisierung mit 1,25-Dichlor-13-Pentacosanon, nachfolgender Nitrierung und Reduktion wird das Diamin 13c erhalten. Dessen Cyclisierung in 2-Pentanol in Gegenwart von Natriumcarbonat und Natriumiodid unter Verdünnungsbedingungen ergibt die monomeren Cyclisierungsprodukte 16, 17 und 18 in Ausbeuten von 21.4. 7.7 und 0.9%. Die Struktur dieser Verbindungen wird anhand der Massen-, 13C- und 1H-NMR-Spektren diskutiert. In einer mehrstufigen Reaktionsfolge werden aus dem Prä-[3]-catenan 16 die [3]-Catenane 25a, b, c und 26a, b, c erhalten. Die Struktur dieser Verbindungen wird durch 13C-NMR, 1H-NMR- und massenspektroskopische Untersuchungen bewiesen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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